Patents by Inventor Toshirou Iwata

Toshirou Iwata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10303003
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: May 28, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20180164617
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Patent number: 9927657
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 27, 2018
    Assignees: Japan Display Inc., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20170123242
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Tomoyuki SHIROMOTO, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Patent number: 9575365
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 21, 2017
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20160116771
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 28, 2016
    Inventors: Tomoyuki SHIROMOTO, Toshirou IWATA, Rai YANG, Shinichi SOTO
  • Patent number: 9257458
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: February 9, 2016
    Assignees: JAPAN DISPLAY INC, Panasonic Liquid Crystal Display Co. Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20130330858
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Patent number: 8514356
    Abstract: In a liquid crystal display device small in the size and having a narrow frame, an alignment film can be coated by ink jet printing, by coating a rapidly drying peripheral alignment film 109 in the shape of a frame to a TFT substrate 100 having a display region having pixel electrode 107 and a peripheral region thereof by ink jet printing, and then coating a display region alignment film 108 drying slower but excellent in the leveling effect by ink jet printing. While the display region alignment film 108 dries slowly, since the peripheral alignment film 109 formed to the periphery functions as a stopper, the shape of the alignment film can be defined accurately, thereby enabling to prevent lowering of the adhesion of the seal member 20 under the effect of the alignment film. This can be applied also on the side of the counter substrate 200.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20110176097
    Abstract: In a liquid crystal display device small in the size and having a narrow frame, an alignment film can be coated by ink jet printing, by coating a rapidly drying peripheral alignment film 109 in the shape of a frame to a TFT substrate 100 having a display region having pixel electrode 107 and a peripheral region thereof by ink jet printing, and then coating a display region alignment film 108 drying slower but excellent in the leveling effect by ink jet printing. While the display region alignment film 108 dries slowly, since the peripheral alignment film 109 formed to the periphery functions as a stopper, the shape of the alignment film can be defined accurately, thereby enabling to prevent lowering of the adhesion of the seal member 20 under the effect of the alignment film. This can be applied also on the side of the counter substrate 200.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Inventors: Tomoyuki SHIROMOTO, Toshirou IWATA, Rai YANG, Shinichi SOTO
  • Patent number: 6900875
    Abstract: In a process for forming an alignment film on a substrate that is used for a liquid crystal display, a coating destined to be the alignment film is formed on one surface of the substrate, and a gas flow is formed by a nozzle on a surface side on which the coating is formed. By thus implementing, an uniform alignment film can be formed on the substrate for use in the liquid crystal display.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: May 31, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Keiko Nakano, Hirotaka Imayama, Shigeki Matsuda, Toshirou Iwata, Masahiro Yamada
  • Publication number: 20030112407
    Abstract: In a process for forming an alignment film on a substrate that is used for a liquid crystal display, a coating destined to be the alignment film is formed on one surface of the substrate, and a gas flow is formed by a nozzle on a surface side on which the coating is formed. By thus implementing, an uniform alignment film can be formed on the substrate for use in the liquid crystal display.
    Type: Application
    Filed: August 19, 2002
    Publication date: June 19, 2003
    Inventors: Keiko Nakano, Hirotaka Imayama, Shigeki Matsuda, Toshirou Iwata, Masahiro Yamada